Enthalpy Wheel and its Application in Air Conditioning

Abstract: This paper presents about the enthalpy wheel and its application in air conditioning. Enthalpy wheels have two major applications-air dehumidification and enthalpy recovery. Control of relative humidity is an essential aspect of maintaining indoor air quality in an air-conditioned space. The enthalpy wheel dehumidifies and heats the supply air. The regeneration of desiccant is accomplished by the return air, which gets cooled and humidified. Since the operating conditions are different, heat and mass transfer behaviors in the wheels are quite different. Keywords: Enthalpy wheel; Dehumidification; Silica gel; Humidity control; Air conditioning.